29310685090381 has 8 divisors (see below), whose sum is σ = 31035242440440. Its totient is φ = 27586172118528.

The previous prime is 29310685090361. The next prime is 29310685090417. The reversal of 29310685090381 is 18309058601392.

It can be written as a sum of positive squares in 4 ways, for example, as 15342967340100 + 13967717750281 = 3917010^2 + 3737341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29310685090381 - 2²³ = 29310676701773 is a prime.

It is a super-2 number, since 2×29310685090381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29310685090361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9729946 + ... + 12381163.

It is an arithmetic number, because the mean of its divisors is an integer number (3879405305055).

Almost surely, 2^{29310685090381} is an apocalyptic number.

It is an amenable number.

29310685090381 is a deficient number, since it is larger than the sum of its proper divisors (1724557350059).

29310685090381 is a wasteful number, since it uses less digits than its factorization.

29310685090381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22189103.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 29310685090381 in words is "twenty-nine trillion, three hundred ten billion, six hundred eighty-five million, ninety thousand, three hundred eighty-one".